TITLE:   GCN CIRCULAR
NUMBER:  35804
SUBJECT: GRB 240226A: Fermi GBM Final Real-time Localization
DATE:    24/02/26 19:43:46 GMT
FROM:    Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>

The Fermi GBM team reports the detection of a likely LONG GRB

At 19:33:07 UT on 26 Feb 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240226A (trigger 730668792.323378 / 240226815).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 289.1, Dec = -43.1 (J2000 degrees, equivalent to J2000 19h 16m, -43d 06'), with a statistical uncertainty of 9.0 degrees.

The angle from the Fermi LAT boresight is 30.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240226815/quicklook/glg_skymap_all_bn240226815.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240226815/quicklook/glg_healpix_all_bn240226815.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240226815/quicklook/glg_lc_medres34_bn240226815.gif